Adding a nickelbacker of his size and ranginess would potentially be an impact pick. He would be an upgrade over Christian as a rookie but also the guy played CB and S during the Senior Bowl and looked good at both. So impact year one as a nickelbacker with big coverage ability boost over what Marquis had, and insane upside at a few positions (CB/S and WILB is in play for him too in this offense).
Only reason I don't get all crazy pounding the desk for him is because I think he's gone well before 52. The guy is a size/athleticism freak with upside at multiple positions and who showed very well during Senior Bowl week. Teams gonna want that.